Nano Banana Pro API — HD Image Generation up to 4K

Generate HD images up to 4K with Nano Banana Pro through VicSee API. Gemini 3.0 Pro model, 1K/2K/4K resolutions, superior detail, print-ready quality. 18-36 credits per image.

Try it now: Use the Nano Banana Pro Generator to create HD images up to 4K.

Pricing

Resolution	Credits	Price (Pro Yearly)	Price (Pro Monthly)
1K (1024px)	18	$0.108	$0.216
2K (2048px)	18	$0.108	$0.216
4K (4096px)	36	$0.216	$0.432

Credits are deducted only on successful generation.

Endpoint

POST https://vicsee.com/api/v1/generate

See Authentication for API key setup.

Text to Image (HD)

Generate high-resolution images from text descriptions.

Request Parameters

Parameter	Type	Required	Description
model	string	Yes	`nano-banana-pro-text-to-image`
input.prompt	string	Yes	Detailed description of the image
input.resolution	string	No	`1K`, `2K`, or `4K` (default: 1K)
input.aspect_ratio	string	No	`1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `2:3`, `3:2`, `4:5`, `5:4`, `21:9`
input.output_format	string	No	`png` or `jpg` (default: png)

Example Request

curl -X POST https://vicsee.com/api/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nano-banana-pro-text-to-image",
    "input": {
      "prompt": "Hyperrealistic portrait of a Renaissance noblewoman, intricate gold jewelry, velvet dress with embroidered details, dramatic Rembrandt lighting, museum-quality fine art photography",
      "resolution": "4K",
      "aspect_ratio": "3:4",
      "output_format": "png"
    }
  }'

Image to Image (HD)

Edit or transform images at high resolution.

Request Parameters

Parameter	Type	Required	Description
model	string	Yes	`nano-banana-pro-image-to-image`
input.prompt	string	Yes	Description of the transformation
input.image_urls	array	Yes	Array with URL of the source image (up to 8)
input.resolution	string	No	`1K`, `2K`, or `4K` (default: 1K)
input.aspect_ratio	string	No	Output aspect ratio
input.output_format	string	No	`png` or `jpg` (default: png)

Example Request

curl -X POST https://vicsee.com/api/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nano-banana-pro-image-to-image",
    "input": {
      "prompt": "Transform into a cyberpunk style portrait with neon lighting and futuristic elements",
      "image_urls": ["https://example.com/portrait.jpg"],
      "resolution": "2K",
      "output_format": "png"
    }
  }'

Resolution Guide

Resolution	Dimensions	Best For	Processing Time
1K	1024 x 1024	Social media, web thumbnails	10-15s
2K	2048 x 2048	Blog headers, presentations	15-20s
4K	4096 x 4096	Print, posters, merchandise	20-30s

Print sizes at 300 DPI:

1K: ~3.4 x 3.4 inches
2K: ~6.8 x 6.8 inches
4K: ~13.6 x 13.6 inches (poster size)

Response

Success (200)

{
  "success": true,
  "data": {
    "id": "task_abc123xyz",
    "model": "nano-banana-pro-text-to-image",
    "status": "pending",
    "creditsUsed": 36,
    "creditsRemaining": 964,
    "createdAt": "2026-02-11T12:00:00Z"
  }
}

Poll for completion using Tasks API.

Task Complete

{
  "taskId": "task_abc123xyz",
  "status": "completed",
  "output": {
    "url": "https://cdn.vicsee.com/outputs/image_xyz.png",
    "width": 4096,
    "height": 4096,
    "format": "png",
    "resolution": "4K"
  }
}

Nano Banana - Fast standard-resolution images (10 credits)

Nano Banana Pro

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